Constructing a class extending JDialog when invoked from main application

Question

In an application that extends JFrame a method, showJDialogGUI, is called to instantiate an object of another class (called enterGUI) that extends JDialog. This object, enterGUIDialog, is modal; user must click on its Submit button in order to dismiss it and be able to continue in MainProgram. I have troubles getting error messages resolved when the constructor of the enterGUIDialog JDialog object is called. Perhaps there are other things wrong with below code. Any help appreciated - snippet of code from both classes is below.
public class MainProgram extends JFrame {
enterGUI enterGUIDialog; // declaration for object of class extending JDialog
public MainProgram() {     // constructor
myContainer = getContentPane();
showJDialogGUI(); // calls method to initialize
public void showJDialogGUI() {
enterGUIDialog = new enterGUI (this, true);
enterGUIDialog.setDefaultCloseOperation (DISPOSE_ON_CLOSE );
enterGUIDialog.setSize(200,200);
enterGUIDialog.setVisible( true );
enterGUIDialog.show();
} // end of class MainProgram
public class enterGUI extends JDialog{
Container myContainer;
JPanel myPanel;
//// How to call the constructor to create this JDialog????
public loginGUI( JRootPane theRoot, boolean theModal ) // passed in 'this', and 'true'
// or maybe??? public About(Frame parent, boolean modal) {
this.setRootPane( theRoot ); //???????
// or maybe ??? super(theRoot, flag);
//super(theRoot, flag); // calls Dialog class constructor
this.setModal( theModal ); // ?????
myContainer = getContentPane();
myContainer.setLayout( new FlowLayout() );
thePanel = new JPanel();
// next add components to JPanel, then add to the JDialog container
fieldsPanel.add( pageLabel ); etc.
myContainer.add( fieldsPanel );
// etc.
myContainer.setDefaultCloseOperation( DISPOSE_ON_CLOSE );
myContainer.setVisible(true);
} // end of constructor
// more methods etc
}

Answer 1

Error received is:
E:\Ghost>
MainProgram.java:670: cannot resolve symbol
symbol : constructor enterGUI (MainProgram,boolean)
location: class MyPackage.enterGUI
enterGUIDialog = new enterGUI(this, true);
'new enterGUI(this, true); ' seems to be at start of
error
TIAThe error message could not be any more clear. To wit: the compiler is telling you it cannot find a constructor for class enterGUI that takes as parameters a reference to a javax.swing.JFrame, and a boolean value. Supply the constructor and the error will not be raised.